[Insight-users] Re: multimiresregistration thanks, vtk!

[Christos Panagiotou]

Luis

thanks for your fast reply



paraview reads the .mha file of an example volume from brainweb and
makes a nice visualization - ok till here!

however i would like to be able to visualize through vtk bymyself...

i rewrote the example of the metaImageReader in c++ 
(http://public.kitware.com/cgi-bin/cvsweb.cgi/~checkout~/VTK/IO/Testing/Tcl/TestMHD.tcl)
and i use the same .mha which i used for paraview

but again i had the sameerror, stating that there is no data to generate 
the normals!
i dont know what am i doing wrong! :(


thats the important parts of my code - i just tried to keep the options 
as simple as possible

(I havent used a vtkLookupTable)

  const char *metafname = 
"/home/christos/PhD/Data/raw/Brain1Rot/Brain/brainweb1e1a10f20Rot10Tx15.mha";

  vtkMetaImageReader *meta = vtkMetaImageReader::New();
    meta->SetFileName(metafname); 
  
  vtkContourFilter *skinExtractor = vtkContourFilter::New();
    skinExtractor->SetInput((vtkDataSet *)meta->GetOutput());  
    skinExtractor->SetValue(0, 255);
    skinExtractor->ComputeNormalsOff();
    skinExtractor->ComputeGradientsOff();   
    /*
  vtkPolyDataNormals *skinNormals = vtkPolyDataNormals::New();
  skinNormals->SetInput(skinExtractor->GetOutput());
  skinNormals->SetFeatureAngle(60.0);
   */
  vtkPolyDataMapper *skinMapper = vtkPolyDataMapper::New();
    skinMapper->SetInput(skinExtractor->GetOutput());
    skinMapper->ScalarVisibilityOn();
    skinMapper->SetScalarModeToUsePointFieldData();

  and then i render it...


i would be greatful for some help!
thanks
christos